Jiggle, jiggle…
John,
> With all the other gizmos you've made, I'da thought you would have made a
seismograph
> from a 6809 and three inches of baling wire. 🙂 Could there have been
someone walking
> across the room upstairs? Was it morning when the slab wall might be
warming, or evening
> when it might be cooling?
Funny you should mention that. I've got a light shining on it, and a stick of
photo-sensitive cells along the edge of the shadow, where it moves when it's
pushed – using a TTL encoder tree to read 'em in on a breadboard, and a 6809
send them along in serial form. Crude, but it catches the movements as gross as
I saw the other day very well, 64 photocells in a two inch arc (which is
magnified by the shadow). I've been running a logging task (pretty trivial,
really) since about 2am last night on the 4000 (which is also running SSTV and
the network… 🙂 I graph the results using Analyze. Nothing so far since last
nite, other than tiny movements.
I'm watching it now. 🙂
Ben